• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

engine

  • Thread starter Thread starter Kuestone
  • Start date Start date Oct 17, 2005
K

Kuestone

New Member
Apr 11, 2005
93
0
0
California
Oct 17, 2005
#1
  • Oct 17, 2005
  • #1
If I install new heads a high racing intake manifold forged internals port polish and forged pistons will my stang be smog and street legal? 02 mustang gt.
 
T

Torinalth

Founding Member
Jul 16, 2002
952
0
16
Clayton NC
Oct 17, 2005
#2
  • Oct 17, 2005
  • #2
not in cali. changing the intake will immediatly flag the ref. all the rest cant be seen but anything changed under the hood not carb OE legal (so far nothing intake has been approved) can be seen then that a no in cali.

glad i live where i do, i could mount a viper engine to a set of axles with duct tape and a milk crate... teer with a pair of chains on the front wheels, and as long as i can drive it to the station i get a sticker. i love backwoods NC

Torinalth
 
K

Kuestone

New Member
Apr 11, 2005
93
0
0
California
Oct 17, 2005
#3
  • Oct 17, 2005
  • #3
will it be smog legal though pass a smog test?
 

sgarlic

Founding Member
Apr 21, 2001
3,085
1
56
Oct 17, 2005
#4
  • Oct 17, 2005
  • #4
Torinalth said:
not in cali. changing the intake will immediatly flag the ref. all the rest cant be seen but anything changed under the hood not carb OE legal (so far nothing intake has been approved) can be seen then that a no in cali.

glad i live where i do, i could mount a viper engine to a set of axles with duct tape and a milk crate... teer with a pair of chains on the front wheels, and as long as i can drive it to the station i get a sticker. i love backwoods NC

Torinalth
Click to expand...

Don't worry, the federal emissions testing requirement will hit your area within 5-10 more years.
 

sgarlic

Founding Member
Apr 21, 2001
3,085
1
56
Oct 17, 2005
#5
  • Oct 17, 2005
  • #5
Kuestone said:
will it be smog legal though pass a smog test?
Click to expand...

As long as you don't modify the catalytic converters, egr, etc, having forged internals shouldn't change whether or not you can pass the sniffer.

I also have to ask, you said forged internals, and forged pistons.. you do know that pistons are part of the internals, right?
 

03ghoststang

Well-Known Member
Jul 16, 2005
1,930
1
57
Los Angeles, California
Oct 17, 2005
#6
  • Oct 17, 2005
  • #6
well in cali you could get by with stg1 cams and a stock H-pipe to pass the sniffer......a superchager will also pass with a real dead on tune the ones ive seen passing here where i live in cali are the prochargers but if you do change something and it dosent look stock then you will have to change it to stock sucks
 
You must log in or register to reply here.

Similar threads

A
Engine 04 GT timing chain issue
  • AwesomeX1103
  • Sep 3, 2025
  • SN95 4.6L Mustang Tech
Replies
3
Views
336
SN95 4.6L Mustang Tech Nov 5, 2025
Noobz347
E
Chasing Vacuum leak 99 GT
  • EBNS_2005
  • May 2, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
2
Views
105
1996 - 2004 SN95 Mustang -General/Talk- May 3, 2026
X-cam34
X
9
Engine Donor '00 Mountaineer meet '91 Fox
  • 91firecracker
  • May 11, 2026
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
41
Views
502
Fox 5.0 Mustang Tech May 28, 2026
91firecracker
9
351W/5.8 EFI intake manifolds fading away...
  • Ryno5150
  • Jan 13, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
479
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 7, 2026
nickyb
Need some camshaft guru advice on power loss from supercharger to nitrous
  • TTSaleen
  • Dec 1, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
18
Views
554
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 29, 2025
revhead347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?